1
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Chen J, Yang X, Huang Y, Zheng Z, Li T. The Development of Aldehyde Catalytic System. Chem Asian J 2023; 18:e202300731. [PMID: 37755436 DOI: 10.1002/asia.202300731] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 09/28/2023]
Abstract
Aldehyde catalysts have proven to be highly effective in facilitating and accelerating a wide range of challenging transformations in organic chemistry. This article is structured into three main sections, focusing on the utilization of aldehydes as organocatalysts, the aldehydes/transition metals catalytic systems, and photochemical initiators. Finally, we provide a concise summary of the advancements in this fascinating research field, offering our perspectives and insights.
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Affiliation(s)
- Jinli Chen
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University. Huaxi District, Guiyang, 550025, China
| | - Xiaoqun Yang
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University. Huaxi District, Guiyang, 550025, China
| | - Yixian Huang
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University. Huaxi District, Guiyang, 550025, China
| | - Zhiguo Zheng
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University. Huaxi District, Guiyang, 550025, China
| | - Tingting Li
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University. Huaxi District, Guiyang, 550025, China
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2
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Zhang S, Yang L, Fu J, Tan Q, Liu K, Huang T, Li C, Liu L, Chen T. Palladium-catalyzed and norbornene-mediated C-H amination and C-O alkenylation of aryl triflates. Org Biomol Chem 2023; 21:4398-4403. [PMID: 37161968 DOI: 10.1039/d3ob00260h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The C-H amination and C-O alkenylation of aryl triflates was achieved through Pd/norbornene (NBE) cooperative catalysis. By this strategy, various ortho-alkenyl tertiary anilines including those bearing functional groups were produced in good to excellent yields. This reaction represents a new conversion model for phenoxides. It expands the scope of Catellani-type reactions and the application of phenoxides in organic synthesis.
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Affiliation(s)
- Shuo Zhang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Lei Yang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Jianbin Fu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Qihang Tan
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Kuan Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Tianzeng Huang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Chunya Li
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Long Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
| | - Tieqiao Chen
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab. of Fine Chem., Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, 570228, China.
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3
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Filer CN. Creation of a nitrosamine library labelled with 14C or tritium. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-022-08728-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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4
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Trampuž M, Žnidarič M, Gallou F, Časar Z. Does the Red Shift in UV-Vis Spectra Really Provide a Sensing Option for Detection of N-Nitrosamines Using Metalloporphyrins? ACS OMEGA 2023; 8:1154-1167. [PMID: 36643536 PMCID: PMC9835193 DOI: 10.1021/acsomega.2c06615] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
N-nitrosamines are widespread cancerogenic compounds in human environment, including water, tobacco products, food, and medicinal products. Their presence in pharmaceuticals has recently led to several recalls of important medicines from the market, and strict controls and tight limits of N-nitrosamines are now required. Analytical determination of N-nitrosamines is expensive, laborious, and time-inefficient making development of simpler and faster techniques for their detection crucial. Several reports published in the previous decade have demonstrated that cobalt porphyrin-based chemosensors selectively bind N-nitrosamines, which produces a red shift of characteristic Soret band in UV-Vis spectra. In this study, a thorough re-evaluation of metalloporphyrin/N-nitrosamine adducts was performed using various characterization methods. Herein, we demonstrate that while N-nitrosamines can interact directly with cobalt-based porphyrin complexes, the red shift in UV-Vis spectra is not selectively assured and might also result from the interaction between impurities in N-nitrosamines and porphyrin skeleton or interaction of other functional groups within the N-nitrosamine structure and the metal ion within the porphyrin. We show that pyridine nitrogen is the interacting atom in tobacco-specific N-nitrosamines (TSNAs), as pyridine itself is an active ligand and not the N-nitrosamine moiety. When using Co(II) porphyrins as chemosensors, acidic and basic impurities in dialkyl N-nitrosamines (e.g., formic acid, dimethylamine) are also UV-Vis spectra red shift-producing species. Treatment of these N-nitrosamines with K2CO3 prevents the observed UV-Vis phenomena. These results imply that cobalt-based metalloporphyrins cannot be considered as selective chemosensors for UV-Vis detection of N-nitrosamine moiety-containing species. Therefore, special caution in interpretation of UV-Vis red shift for chemical sensors is suggested.
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Affiliation(s)
- Marko Trampuž
- Lek
Pharmaceuticals d.d., Sandoz Development
Center Slovenia, Kolodvorska
27, 1234 Mengeš, Slovenia
| | - Mateja Žnidarič
- Lek
Pharmaceuticals d.d., Sandoz Development
Center Slovenia, Kolodvorska
27, 1234 Mengeš, Slovenia
| | - Fabrice Gallou
- Chemical
and Analytical Development, Novartis Pharma
AG, Basel 4056, Switzerland
| | - Zdenko Časar
- Lek
Pharmaceuticals d.d., Sandoz Development
Center Slovenia, Kolodvorska
27, 1234 Mengeš, Slovenia
- Chair
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
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5
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He X, Buchotte M, Guillot R, Deloisy S, Aitken DJ. A case study of the MAC (masked acyl cyanide) oxyhomologation of N, N-dibenzyl-L-phenylalaninal with anti diastereoselectivity: preparation of (2 S,3 S)-allophenylnorstatin esters. Org Biomol Chem 2022; 20:1769-1781. [PMID: 35166749 DOI: 10.1039/d1ob02411f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The three-component reaction between a protected α-amino aldehyde, an alcohol and an α-silyloxymalononitrile provides an expedient access to protected α-hydroxy-β-amino acid derivatives. The prototypical process, performed on N-Cbz-phenylalaninal, is known to proceed with syn diastereoselectivity. The present study demonstrates that the diastereoselectivity of the reaction can be inverted, using the rationale of a Felkin-Anh interaction model. Reactions performed on N,N-dibenzyl-L-phenylalaninal proceed with a high anti diastereoselectivity, providing a panel of synthetically useful ester derivatives of (2S,3S)-allophenylnorstatin. The procedure is exploited to accomplish one of the most efficient syntheses of the title compound to date, in 3 steps (66% yield) from N,N-dibenzyl-L-phenylalaninal.
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Affiliation(s)
- Xuefeng He
- Université Paris-Saclay, CNRS, ICMMO, CP3A Organic Synthesis Group and Services Communs, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.
| | - Marie Buchotte
- Université Paris-Saclay, CNRS, ICMMO, CP3A Organic Synthesis Group and Services Communs, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.
| | - Régis Guillot
- Université Paris-Saclay, CNRS, ICMMO, CP3A Organic Synthesis Group and Services Communs, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.
| | - Sandrine Deloisy
- Université Paris-Saclay, CNRS, ICMMO, CP3A Organic Synthesis Group and Services Communs, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.
| | - David J Aitken
- Université Paris-Saclay, CNRS, ICMMO, CP3A Organic Synthesis Group and Services Communs, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.
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6
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Borths CJ, Burns M, Curran T, Ide ND. Nitrosamine Reactivity: A Survey of Reactions and Purge Processes. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christopher J. Borths
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Michael Burns
- Lhasa Limited, Leeds, West Yorkshire, U.K., LS11 5PS
| | - Timothy Curran
- Vertex Pharmaceuticals, Inc., 50 Northern Avenue, Boston, Massachusetts 01757, United States
| | - Nathan D. Ide
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
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7
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Wang Y, You S, Ruan M, Wang F, Ma C, Lu C, Yang G, Chen Z, Gao M. The Use of Potassium/Sodium Nitrite as a Nitrosating Agent in the Electrooxidative
N
‐Nitrosation of Secondary Amines. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ying Wang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Shiqi You
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Mengyao Ruan
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Feiyi Wang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Chao Ma
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Cuifen Lu
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Guichun Yang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Zuxing Chen
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
| | - Meng Gao
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering Hubei University 430062 Wuhan China
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8
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Zhu D, Qu Z, Zhou J, Stephan DW. The Reactivity of Isomeric Nitrenium Lewis Acids with Phosphines, Carbenes, and Phosphide. Chemistry 2021; 27:2861-2867. [PMID: 33137240 PMCID: PMC7898612 DOI: 10.1002/chem.202004798] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 11/25/2022]
Abstract
Alkylation of spiro[fluorene-9,3'-indazole] at N(1) and N(2) with tBuCl affords the nitrenium cations [C6 H4 N2 (tBu)C(C12 H8 )][BF4 ], 1 and 2, respectively. Compound 1 converts to 2 over the temperature range 303-323 K with a free energy barrier of 28±5 kcal mol-1 . Reaction of 1 with PMe3 afforded the N-bound phosphine adduct [C6 H4 N(tBu)N(PMe3 )C(C12 H8 )]BF4 ] 3. However, phosphines attack 2 at the para-carbon atom of the aryl group with concurrent cleavage of N(2)-C(1) bond and proton migration to C(1) affording [(R3 P)C6 H3 NN(tBu)CH(C12 H8 )][BF4 ] (R=Me 4, nBu 5). Analogous reactions of 1 and 2 with the carbene SIMes prompt attack at the para-carbon with concurrent loss of H. affording the radical cation salts [(SIMes)C6 H3 N(tBu)NC(C12 H8 ). ][BF4 ] 6 and [(SIMes)C6 H3 NN(tBu)C(C12 H8 ). ][BF4 ] 7, whereas reaction of 2 with BAC gives the Lewis acid-base adduct, [C6 H4 N(BAC)N(tBu)C(C12 H8 )][BF4 ] 8. Finally, reactions of 1 and 2 with KPPh2 result in electron transfer affording (PPh2 )2 and the persistent radicals C6 H4 N(tBu)NC(C12 H8 ). and C6 H4 NN(tBu)C(C12 H8 ). . The detailed reaction mechanisms are also explored by extensive DFT calculations.
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Affiliation(s)
- Diya Zhu
- Department of ChemistryUniversity of Toronto80 St George StTorontoOntarioM5S3H6Canada
| | - Zheng‐Wang Qu
- Mulliken Center for Theoretical ChemistryInstitut für Physikalische und Theoretische ChemieRheinische Friedrich-Wilhelms-Universität BonnBeringstrasse 453115BonnGermany
| | - Jiliang Zhou
- Department of ChemistryUniversity of Toronto80 St George StTorontoOntarioM5S3H6Canada
| | - Douglas W. Stephan
- Department of ChemistryUniversity of Toronto80 St George StTorontoOntarioM5S3H6Canada
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9
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Beard JC, Swager TM. An Organic Chemist's Guide to N-Nitrosamines: Their Structure, Reactivity, and Role as Contaminants. J Org Chem 2021; 86:2037-2057. [PMID: 33474939 DOI: 10.1021/acs.joc.0c02774] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
N-Nitrosamines are a class of compounds notorious both for the potent carcinogenicity of many of its members and for their widespread occurrence throughout the human environment, from air and water to our diets and drugs. Considerable effort has been dedicated to understanding N-nitrosamines as contaminants, and methods for their prevention, remediation, and detection are ongoing challenges. Understanding the chemistry of N-nitrosamines will be key to addressing these challenges. To facilitate such understanding, we focus in this Perspective on the structure, reactivity, and synthetic applications of N-nitrosamines with an emphasis on alkyl N-nitrosamines. The role of N-nitrosamines as water contaminants and the methods for their detection are also discussed.
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Affiliation(s)
- Jessica C Beard
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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10
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Kleinmans R, Will LE, Schwarz JL, Glorius F. Photoredox-enabled 1,2-dialkylation of α-substituted acrylates via Ireland-Claisen rearrangement. Chem Sci 2021; 12:2816-2822. [PMID: 34164045 PMCID: PMC8179405 DOI: 10.1039/d0sc06385a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Herein, we report the 1,2-dialkylation of simple feedstock acrylates for the synthesis of valuable tertiary carboxylic acids by merging Giese-type radical addition with an Ireland-Claisen rearrangement. Key to success is the utilization of the reductive radical-polar crossover concept under photocatalytic reaction conditions to force the [3,3]-sigmatropic rearrangement after alkyl radical addition to allyl acrylates. Using readily available alkyl boronic acids as radical progenitors, this redox-neutral, transition-metal-free protocol allows the mild formation of two C(sp3)-C(sp3) bonds, thus providing rapid access to complex tertiary carboxylic acids in a single step. Moreover, this strategy enables the efficient synthesis of highly attractive α,α-dialkylated γ-amino butyric acids (GABAs) when α-silyl amines are used as radical precursors - a structural motif that was still inaccessible in related transformations. Depending on the nature of the radical precursors and their inherent oxidation potentials, either a photoredox-induced radical chain or a solely photoredox mechanism is proposed to be operative.
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Affiliation(s)
- Roman Kleinmans
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Leon E Will
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - J Luca Schwarz
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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11
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Schwarz JL, Kleinmans R, Paulisch TO, Glorius F. 1,2-Amino Alcohols via Cr/Photoredox Dual-Catalyzed Addition of α-Amino Carbanion Equivalents to Carbonyls. J Am Chem Soc 2020; 142:2168-2174. [PMID: 31923360 DOI: 10.1021/jacs.9b12053] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, we report the synthesis of protected 1,2-amino alcohols starting from carbonyl compounds and α-silyl amines. The reaction is enabled by a Cr/photoredox dual catalytic system that allows the in situ generation of α-amino carbanion equivalents which act as nucleophiles. The unique nature of this reaction was demonstrated through the aminoalkylation of ketones and an acyl silane, classes of electrophiles that were previously unreactive toward addition of alkyl-Cr reagents. Overall, this reaction broadens the scope of Cr-mediated carbonyl alkylations and discloses an underexplored retrosynthetic strategy for the synthesis of 1,2-amino alcohols.
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Affiliation(s)
- J Luca Schwarz
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany
| | - Roman Kleinmans
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany
| | - Tiffany O Paulisch
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany
| | - Frank Glorius
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , 48149 Münster , Germany
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12
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Sanz-Marco A, Martinez-Erro S, Pauze M, Gómez-Bengoa E, Martín-Matute B. An umpolung strategy to react catalytic enols with nucleophiles. Nat Commun 2019; 10:5244. [PMID: 31748504 PMCID: PMC6868166 DOI: 10.1038/s41467-019-13175-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/24/2019] [Indexed: 01/07/2023] Open
Abstract
The selective synthesis of α-functionalized ketones with two similar enolizable positions can be accomplished using allylic alcohols and iridium(III) catalysts. A formal 1,3-hydrogen shift on allylic alcohols generates catalytic iridium-enolates in a stereospecific manner, which are able to react with electrophiles to yield α-functionalized ketones as single constitutional isomers. However, the employment of nucleophiles to react with the nucleophilic catalytic enolates in this chemistry is still unknown. Herein, we report an umpolung strategy for the selective synthesis of α-alkoxy carbonyl compounds by the reaction of iridium enolates and alcohols promoted by an iodine(III) reagent. Moreover, the protocol also works in an intramolecular fashion to synthesize 3(2H)-furanones from γ-keto allylic alcohols. Experimental and computational investigations have been carried out, and mechanisms are proposed for both the inter- and intramolecular reactions, explaining the key role of the iodine(III) reagent in this umpolung approach. Nucleophiles cannot be directly reacted with enolates due to polarity mismatching. Here, the authors developed an umpolung strategy for the selective synthesis of α-alkoxy carbonyl compounds by reaction of iridium enolates with nucleophilic alcohols promoted by an iodine(III) reagent.
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Affiliation(s)
- Amparo Sanz-Marco
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Samuel Martinez-Erro
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Martin Pauze
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden.,Departamento de Química Orgánica I, Universidad del País Vasco/UPV-EHU, Manuel de Lardizabal 3, Donostia - San Sebastián, 20018, Spain
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I, Universidad del País Vasco/UPV-EHU, Manuel de Lardizabal 3, Donostia - San Sebastián, 20018, Spain
| | - Belén Martín-Matute
- Department of Organic Chemistry, Stockholm University, Stockholm, SE-10691, Sweden.
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13
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Winter M, Kim H, Waser M. Pd-Catalyzed Allylation of Imines to Access α-CF 3-Substituted α-Amino Acid Derivatives. European J Org Chem 2019; 2019:7122-7127. [PMID: 31798337 PMCID: PMC6887540 DOI: 10.1002/ejoc.201901272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Indexed: 01/06/2023]
Abstract
We herein report a high yielding protocol for the direct α-allylation of easily accessible trifluoropyruvate-derived imines using Pd-catalysis. The reaction gives access to a variety of different α-allylated-α-CF3-amino acids in a straightforward manner, starting from commercially available trifluoropyruvate. We also provide a proof-of-concept for an enantioselective protocol (up to er = 75:25) by using chiral phosphane ligands.
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Affiliation(s)
- Michael Winter
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstr. 694040LinzAustria
| | - Hyunwoo Kim
- Department of ChemistryKorea Advanced Institute of Science and Technology291 Daehak‐ro34141DaejeonYuseong‐guRepublic of Korea
| | - Mario Waser
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstr. 694040LinzAustria
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14
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Winter M, Faust K, Himmelsbach M, Waser M. Synthesis of α-CF 3-proline derivatives by means of a formal (3 + 2)-cyclisation between trifluoropyruvate imines and Michael acceptors. Org Biomol Chem 2019; 17:5731-5735. [PMID: 31149695 PMCID: PMC6625964 DOI: 10.1039/c9ob01134j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We herein report the first formal (3 + 2)-cyclisation between 3,3,3-trifluoropyruvate-derived imines and indandione-based Michael acceptors. This reaction gives access to a novel class of spirocyclic α-CF3-α-proline derivatives with complete control of the diastereoselectivity under phase transfer-catalysed reaction conditions.
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Affiliation(s)
- Michael Winter
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria.
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15
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Zhang Y, Chi G, He Y, Xu Z, Zhang L, Luo J, Zhou B. In situ generated amine as a Lewis base catalyst in the reaction of 3,7‐dinitro‐1,3,5,7‐tetraazabicyclo[3.3.1]nonane in nitric acid: Experimental and DFT study. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.3958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yu Zhang
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing China
| | - Guoli Chi
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing China
| | - Ying He
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing China
| | - Zishuai Xu
- Gansu Yin Guang Chemical Industry Group Co. Ltd Baiyin China
| | - Luyao Zhang
- Gansu Yin Guang Chemical Industry Group Co. Ltd Baiyin China
| | - Jun Luo
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing China
| | - Baojing Zhou
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing China
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16
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Vishe M, Johnston JN. The inverted ketene synthon: a double umpolung approach to enantioselective β 2,3-amino amide synthesis. Chem Sci 2019; 10:1138-1143. [PMID: 30774911 PMCID: PMC6349014 DOI: 10.1039/c8sc04330b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 11/11/2018] [Indexed: 12/29/2022] Open
Abstract
A stereocontrolled synthesis of β2,3-amino amides is reported. Innovation is encapsulated by the first use of nitroalkenes to achieve double umpolung in enantioselective β-amino amide synthesis. Step economy is also fulfilled by the use of Umpolung Amide Synthesis (UmAS) in the second step, delivering the amide product without intermediacy of a carboxylic acid or activated derivative. Molybdenum oxide-mediated hydride reduction provides the anti-β2,3-amino amide with high selectivity.
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Affiliation(s)
- Mahesh Vishe
- Department of Chemistry , Vanderbilt Institute of Chemical Biology Vanderbilt University , Nashville , Tennessee 37235 , USA .
| | - Jeffrey N Johnston
- Department of Chemistry , Vanderbilt Institute of Chemical Biology Vanderbilt University , Nashville , Tennessee 37235 , USA .
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17
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Charvieux A, Duc Vu N, Duguet N, Lemaire M. Valorization of Methyl Azelaaldehydate - A Vegetable Oil Based Platform Molecule for the Synthesis of Monomers through Stetter Reaction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aubin Charvieux
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
| | - Nam Duc Vu
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
| | - Nicolas Duguet
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
| | - Marc Lemaire
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA, CPE-Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS, UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), Bâtiment Lederer; 1 rue Victor Grignard 69100 Villeurbanne cedex France
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18
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Sureshbabu P, Azeez S, Chaudhary P, Kandasamy J. tert-Butyl nitrite promoted transamidation of secondary amides under metal and catalyst free conditions. Org Biomol Chem 2019; 17:845-850. [DOI: 10.1039/c8ob03010c] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transamidation of secondary amides with various amines is demonstrated using tert-butyl nitrite. The reaction proceeds through the N-nitrosamide intermediate and provides the desired products in excellent yields.
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Affiliation(s)
- Popuri Sureshbabu
- Department of chemistry
- Indian Institute of Technology (BHU)
- Varanasi
- India
| | - Sadaf Azeez
- Department of chemistry
- Indian Institute of Technology (BHU)
- Varanasi
- India
| | - Priyanka Chaudhary
- Department of chemistry
- Indian Institute of Technology (BHU)
- Varanasi
- India
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19
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Zhang Y, Xu Z, Zhang L, He Y, Luo J. Kinetic and experimental study on the reaction of 3,7-dinitro-1,3,5,7-tetraazabicyclo[3.3.1]nonane in nitric acid. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00299a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A comprehensive experimental and kinetic study on the reaction of DPT in nitric acid has been performed. The overall yield of the stepwise method for preparing HMX was up to 82.7%, which is a landmark breakthrough for the preparation of HMX from DPT.
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Affiliation(s)
- Yu Zhang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Zishuai Xu
- Gansu Yin Guang Chemical Industry Group Co. Ltd
- Baiyin 730900
- China
| | - Luyao Zhang
- Gansu Yin Guang Chemical Industry Group Co. Ltd
- Baiyin 730900
- China
| | - Ying He
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Jun Luo
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
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20
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Azeez S, Chaudhary P, Sureshbabu P, Sabiah S, Kandasamy J. Potassium Persulfate-Promoted N
-Nitrosation of Secondary and Tertiary Amines with Nitromethane under Mild Conditions. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800437] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sadaf Azeez
- Department of Chemistry; Indian Institute of Technology (BHU), Varanasi; Uttar Pradesh India- 221005
| | - Priyanka Chaudhary
- Department of Chemistry; Indian Institute of Technology (BHU), Varanasi; Uttar Pradesh India- 221005
| | - Popuri Sureshbabu
- Department of Chemistry; Indian Institute of Technology (BHU), Varanasi; Uttar Pradesh India- 221005
| | | | - Jeyakumar Kandasamy
- Department of Chemistry; Indian Institute of Technology (BHU), Varanasi; Uttar Pradesh India- 221005
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21
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22
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Zhou J, Liu LL, Cao LL, Stephan DW. An umpolung of Lewis acidity/basicity at nitrogen by deprotonation of a cyclic (amino)(aryl)nitrenium cation. Chem Commun (Camb) 2018. [PMID: 29527605 DOI: 10.1039/c8cc01331d] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A cyclic (amino)(aryl)nitrenium cation 2 has been achieved by treatment of spiro[fluorene-9,3'-indazole] (1) with Ph2CHCl and AgBF4. This cation 2 is Lewis acidic at nitrenium N1, reacting with PMe3 affording a Lewis acid/base adduct 3. In contrast, deprotonation of 2 with other bases provides a neutral compound 4 which is Lewis basic at N1, reacting with electrophiles including GaCl3, MeOTf and PhNCO.
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Affiliation(s)
- Jiliang Zhou
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario M5S 3H6, Canada.
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23
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Su YL, Li YH, Chen YG, Han ZY. Ir/PTC cooperatively catalyzed asymmetric umpolung allylation of α-imino ester enabled synthesis of α-quaternary amino acid derivatives bearing two vicinal stereocenters. Chem Commun (Camb) 2018; 53:1985-1988. [PMID: 28121003 DOI: 10.1039/c6cc09654a] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel Ir/PTC (phase-transfer catalyst) cooperatively catalyzed asymmetric umpolung allylation of simple α-imino esters is developed and it provides facile access to α-quaternary amino acid derivatives bearing two vicinal stereocenters. Both the metal catalyst and the phase-transfer catalyst are crucial for this methodology. The reaction features good yields, high diastereo- and enantio-selectivities, ease of scale-up to gram scale and further transformation of the products (e.g. to quaternary proline analogues with multi stereocenters).
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Affiliation(s)
- Yong-Liang Su
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
| | - Yu-Hui Li
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
| | - Yu-Gen Chen
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
| | - Zhi-Yong Han
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
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24
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Geng X, Wu X, Wang C, Zhao P, Zhou Y, Sun X, Wang LJ, Guan WJ, Wu YD, Wu AX. NaHS·nH2O-induced umpolung: the synthesis of 2-acyl-3-aminoindoles from aryl methyl ketones and 2-aminobenzonitriles. Chem Commun (Camb) 2018; 54:12730-12733. [DOI: 10.1039/c8cc07599a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for constructing 2-acyl-3-aminoindoles from methyl ketones and 2-aminobenzonitriles is described, in which NaHS·nH2O is used as a novel umpolung reagent for the first time in organic synthesis.
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25
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Kuleshova O, Khilya O, Volovenko Y, Mallet-Ladeira S, Dyakonenko V, Gras E. Expedited Route to Fully Substituted Amino-Pyrazole Building Blocks and Their Further Transformations. ACS OMEGA 2017; 2:8911-8927. [PMID: 31457419 PMCID: PMC6645537 DOI: 10.1021/acsomega.7b01419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 11/23/2017] [Indexed: 06/10/2023]
Abstract
We report here an efficient and easily reproducible two-step approach to heterocycle-substituted amino-pyrazoles from heterocyclic acetonitriles and their unprecedented subsequent transformations to fully substituted pyrazoles. Such transformations include regioselective derivatization from polyamino derivatives, formation of tetracyclic compounds in up to 45% overall yield, and deaminative transformations through diazotization, followed by arylation through Suzuki-Miyaura cross-coupling and C-H activation, providing arylated pyrazoles in up to 71% yield over four steps. This strategy allows the swift introduction of significant molecular complexity to a range of scaffolds.
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Affiliation(s)
- Olena Kuleshova
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Olga Khilya
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Yulian Volovenko
- Chemistry
Department, Taras Shevchenko National University
of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine
| | - Sonia Mallet-Ladeira
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
| | - Viktoriya Dyakonenko
- SSI
“Institute for Single Crystals” National Academy of
Science of Ukraine, 60
Nauky Avenue, Kharkiv 61001, Ukraine
| | - Emmanuel Gras
- Laboratoire
de Chimie de Coordination, Centre National
de la Recherche Scientifique, UPR 8241, Université Fédérale
Toulouse Midi-Pyrénées, 205, Route de Narbonne, Toulouse F-31077, France
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26
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Liu J, Das DK, Zhang G, Yang S, Zhang H, Fang X. N-Heterocyclic Carbene-Catalyzed Umpolung of β,γ-Unsaturated 1,2-Diketones. Org Lett 2017; 20:64-67. [DOI: 10.1021/acs.orglett.7b03358] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian Liu
- College
of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Deb Kumar Das
- State
Key Laboratory of Structural Chemistry, Center for Excellence in Molecular
Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou, 350100, China
| | - Guoxiang Zhang
- State
Key Laboratory of Structural Chemistry, Center for Excellence in Molecular
Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou, 350100, China
| | - Shuang Yang
- State
Key Laboratory of Structural Chemistry, Center for Excellence in Molecular
Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou, 350100, China
| | - Hao Zhang
- State
Key Laboratory of Structural Chemistry, Center for Excellence in Molecular
Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou, 350100, China
| | - Xinqiang Fang
- State
Key Laboratory of Structural Chemistry, Center for Excellence in Molecular
Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou, 350100, China
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27
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Chaudhary P, Korde R, Gupta S, Sureshbabu P, Sabiah S, Kandasamy J. An Efficient Metal-Free Method for the Denitrosation of Aryl N
-Nitrosamines at Room Temperature. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701047] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Priyanka Chaudhary
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
| | - Rishi Korde
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
| | - Surabhi Gupta
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
| | - Popuri Sureshbabu
- Department of Chemistry; Pondicherry University; Pondicherry- 605014
| | | | - Jeyakumar Kandasamy
- Department of Chemistry; Indian Institute of Technology (BHU); Varanasi Uttar Pradesh- 221005
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28
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Zhao Z, Peng Z, Zhao Y, Liu H, Li C, Zhao J. Hypervalent Iodine-Mediated Oxidative Rearrangement of N–H Ketimines: An Umpolung Approach to Amides. J Org Chem 2017; 82:11848-11853. [DOI: 10.1021/acs.joc.7b01468] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhenguang Zhao
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
| | - Zhiyuan Peng
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
| | - Yongli Zhao
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
| | - Hao Liu
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
| | - Chongnan Li
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
| | - Junfeng Zhao
- Key Laboratory of Chemical
Biology of Jiangxi Province, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
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29
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Kong X, Zhang G, Yang S, Liu X, Fang X. N-Heterocyclic Carbene-Catalyzed Umpolung of Alkynyl 1,2-Diketones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700700] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiangwen Kong
- Liaoning University; Shenyang 110036 People's Republic of China
| | - Guoxiang Zhang
- College of Chemistry; Fuzhou University; Fuzhou 350116 People's Republic of China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou 350100 People's Republic of China
| | - Xiaozhi Liu
- Liaoning University; Shenyang 110036 People's Republic of China
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou 350100 People's Republic of China
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30
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Li SG, Han ZS, Viereck P, Lee H, Kurouski D, Senanayake CH, Tsantrizos YS. Metal-Free Cycloetherification by in Situ Generated P-Stereogenic α-Diazanium Intermediates: A Convergent Synthesis of Enantiomerically Pure Dihydrobenzooxaphospholes. Org Lett 2017; 19:894-897. [PMID: 28155279 PMCID: PMC10405299 DOI: 10.1021/acs.orglett.7b00051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A metal-free tandem reaction, initiated by the generation of a diazonium cation and followed by cycloetherification, was developed. Acid-promoted de-tert-butylation of N-nitroso N-tert-butylamine was used to generate a diazonium cation in situ, demonstrating a new application of nitroso chemistry. This reaction was employed in the synthesis of substituted benzofuran-3(2H)-ones and dihydrobenzo[d][1,3]oxaphosphole 3-oxides.
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Affiliation(s)
| | - Zhengxu S Han
- Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc. 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | | | - Heewon Lee
- Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc. 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Dmitry Kurouski
- Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc. 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Chris H Senanayake
- Chemical Development, Boehringer-Ingelheim Pharmaceuticals, Inc. 900 Ridgebury Road, P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
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31
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Waser M, Novacek J. Ein organokatalytischer biomimetischer Ansatz ebnet den Weg für die asymmetrische Umpolung von Iminen. Angew Chem Int Ed Engl 2015; 127:14434-14437. [DOI: 10.1002/ange.201506872] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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32
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Waser M, Novacek J. An Organocatalytic Biomimetic Strategy Paves the Way for the Asymmetric Umpolung of Imines. Angew Chem Int Ed Engl 2015; 54:14228-31. [DOI: 10.1002/anie.201506872] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Mario Waser
- Institut für Organische Chemie, Johannes Kepler Universität Linz, Altenbergerstrasse 69, 4040 Linz (Austria)
| | - Johanna Novacek
- Institut für Organische Chemie, Johannes Kepler Universität Linz, Altenbergerstrasse 69, 4040 Linz (Austria)
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33
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Perry MA, Rychnovsky SD. Generation, structure and reactivity of tertiary organolithium reagents. Nat Prod Rep 2015; 32:517-33. [PMID: 25475042 DOI: 10.1039/c4np00125g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tertiary organolithium reagents have great potential in natural product synthesis. Recent progress in organolithium generation has made them accessible. Their utility and stereoselectivity in synthesis is discussed.
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34
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Wu JY, Liu YC, Chao TC. From 1D Helix to 0D Loop: Nitrite Anion Induced Structural Transformation Associated with Unexpected N-Nitrosation of Amine Ligand. Inorg Chem 2014; 53:5581-8. [DOI: 10.1021/ic500306y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jing-Yun Wu
- Department
of Applied Chemistry, National Chi Nan University, 1 University Road, Puli, Nantou 545, Taiwan
| | - Yu-Chiao Liu
- Institute
of Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 115, Taiwan
| | - Tzu-Ching Chao
- Department
of Applied Chemistry, National Chi Nan University, 1 University Road, Puli, Nantou 545, Taiwan
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35
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36
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Chen ZY, Ye CQ, Zhu H, Zeng XP, Yuan JJ. Palladium/norbornene-mediated tandem C-H amination/C-I alkenylation reaction of aryl iodides with secondary cyclic O-benzoyl hydroxylamines and activated terminal olefins. Chemistry 2014; 20:4237-41. [PMID: 24623486 DOI: 10.1002/chem.201400084] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Indexed: 11/06/2022]
Abstract
A novel palladium-catalyzed norbornene-mediated three-component reaction for the construction of ortho-alkenyl aromatic tertiary amines has been achieved, which represents a useful extension of the Catellani-type tandem ortho-selective CH amination transformations.
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Affiliation(s)
- Zhi-Yuan Chen
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022 (P. R. China).
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37
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Zhang J, Jiang J, Li Y, Wan X. Iodide-Catalyzed Synthesis of N-Nitrosamines via C–N Cleavage of Nitromethane. J Org Chem 2013; 78:11366-72. [DOI: 10.1021/jo401915t] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jie Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Jiewen Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yuling Li
- Jiangsu Key Laboratory
of Green Synthetic Chemistry for Functional Materials, School of Chemistry
and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
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38
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Yotphan S, Beukeaw D, Reutrakul V. Synthesis of 2-aminobenzoxazoles via copper-catalyzed electrophilic amination of benzoxazoles with O-benzoyl hydroxylamines. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.127] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Liu H, Yan X, Chen C, Liu Q, Xi C. Copper-mediated electrophilic imination of alkenylzirconocenes with O-benzoyl ketoximes and aldoximes. Chem Commun (Camb) 2013; 49:5513-5. [PMID: 23660950 DOI: 10.1039/c3cc41574k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper-mediated electrophilic imination of alkenylzirconocenes generated in situ from alkynes and zirconocenes is accomplished under mild reaction conditions. The reaction can be used to prepare various 2-azadienes.
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Affiliation(s)
- Hailan Liu
- Institute of Chemistry and Chemical Engineering, Hebei Normal University, Shijiazhuang 050091, China
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40
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41
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Diederich F. 125 Years of Chemistry in the Mirror of “Angewandte”. Angew Chem Int Ed Engl 2013; 52:2714-42. [DOI: 10.1002/anie.201300056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Indexed: 01/09/2023]
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42
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Miki Y, Hirano K, Satoh T, Miura M. Copper-catalyzed electrophilic amination of arylsilanes with hydroxylamines. Org Lett 2012; 15:172-5. [PMID: 23256842 DOI: 10.1021/ol303222s] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A copper-catalyzed electrophilic amination of aryl[(2-hydroxymethyl)phenyl]dimethylsilanes with O-acylated hydroxylamines has been developed to afford the corresponding anilines in good yields. The catalytic reaction proceeds very smoothly under mild conditions and tolerates a wide range of functional groups.
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Affiliation(s)
- Yuya Miki
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Mita T, Higuchi Y, Sato Y. One-Step Synthesis of Racemic α-Amino Acids from Aldehydes, Amine Components, and Gaseous CO2by the Aid of a Bismetal Reagent. Chemistry 2012. [DOI: 10.1002/chem.201202332] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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44
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Olszewska T, Milewska MJ, Gdaniec M, Połoński T. Spontaneous generation of chirality and chiroptical spectra of N-nitroso-2,4-diaryl-3-azabicyclo[3.3.1]nonanes. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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45
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Mita T, Higuchi Y, Sato Y. Practical Synthesis of N-Boc- and N-Cbz-α-Amido Stannanes from α-Amido Sulfones Using TMSSnBu3 and CsF. Org Lett 2011; 13:2354-7. [DOI: 10.1021/ol200599d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tsuyoshi Mita
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yuki Higuchi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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Mita T, Chen J, Sugawara M, Sato Y. One-Pot Synthesis of α-Amino Acids from Imines through CO2 Incorporation: An Alternative Method for Strecker Synthesis. Angew Chem Int Ed Engl 2011; 50:1393-6. [DOI: 10.1002/anie.201006422] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 11/25/2010] [Indexed: 11/12/2022]
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47
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Mita T, Chen J, Sugawara M, Sato Y. One-Pot Synthesis of α-Amino Acids from Imines through CO2 Incorporation: An Alternative Method for Strecker Synthesis. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006422] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Katritzky AR, Akutagawa K, Fan WQ. Carbon dioxide: A reagent for the protection of nucleophilic centers and the simultaneous activation of alternative locations to electrophilic attack: 15. A synthetic method for the α-substitution of N-phenylbenzylamine. ACTA CHIMICA SINICA 2010. [DOI: 10.1002/cjoc.19890070515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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49
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Seebach D. Erzeugung sekundärer, tertiärer und quartärer Zentren durch geminale Disubstitution von Carbonyl‐Sauerstoffatomen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003823] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dieter Seebach
- Laboratorium für Organische Chemie, Departement für Chemie und Angewandte Biowissenschaften, ETH‐Zürich, Hönggerberg HCI H331, Wolfgang‐Pauli‐Strasse 10, 8093 Zürich (Schweiz), Fax: (+41) 44‐632‐1144 http://infosee.ethz.ch/seebach/seebach.html
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50
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Seebach D. Generation of Secondary, Tertiary, and Quaternary Centers by Geminal Disubstitution of Carbonyl Oxygens. Angew Chem Int Ed Engl 2010; 50:96-101. [DOI: 10.1002/anie.201003823] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dieter Seebach
- Laboratorium für Organische Chemie, Departement für Chemie und Angewandte Biowissenschaften, ETH‐Zürich, Hönggerberg HCI H331, Wolfgang‐Pauli‐Strasse 10, 8093 Zürich (Schweiz), Fax: (+41) 44‐632‐1144 http://infosee.ethz.ch/seebach/seebach.html
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